Galaxies

Scientific American technology editor Seth Fletcher talks about the recent Consumer Electronics Show and astronomy editor Clara Moskowitz discusses last month's American Astronomical Society conference  

 

Able to detect light from the first stars just 380,000 years after the big bang, the Square Kilometer Array will be the world's biggest radio observatory and promises to spur science and economic development in Africa

Astronomers say it's the first direct imaging of the long-sought gas filaments stretching between galaxies

One of the nearest stellar explosions since 1987 could become visible in two weeks to skywatchers using binoculars

Astronomers have measured a distance scale in the universe to unprecedented accuracy, opening the door to better tests of dark energy models than ever before

A new deep-field photo of a “blank spot” in space unveils thousands of previously unseen primordial galaxies

The sun's gravitational pull on dark matter particles may cause seasonal patterns not previously expected

Astronomers may have discovered a moon orbiting an alien planet, but the signal is far from definitive

The Gaia mission's two telescopes are designed to chart one billion stars and help to answer questions about the origins of the Milky Way

X-ray and radio observations offer the best evidence yet that, as long suspected, high-energy particles stream from the heart of our galaxy

Two dwarf galaxies may have smashed together in our Local Group, sparking the nearest "starburst"

NASA’s premier planet-hunting scope turns up 647 possible Earth-sized worlds in the Milky Way